Are E Mail Addresses Case Sensitive
Yes, according to RFC 2821, the local mailbox (the portion before @) is considered case-sensitive. However, e-mail addresses are not usually case-sensitive because of the difficulties and confusion it would cause between users, the server, and the administrator. Therefore, when sending an e-mail, it’s safe to assume an e-mail address like “[email protected]” is the same as “[email protected]” Keep in mind that the username associated with your e-mail account is very likely case-sensitive....